Simulation Analysis and Experiment for Operation Performance of Interval Subsoiler Based on Discrete Element Method
Abstract
In order to solve the problem of soil disturbance caused by straw returning interval deep sowing combined operation machine in conservation tillage, an interval subsoiler with direct injection deep sowing shovel was designed. The discrete element simulation and field experiment method were used to study the different shovel body width affect the behavior of soil disturbance. Taking tillage specific resistance, soil swelling degree and soil disturbance coefficient as experimental indexes, the soil movement state and micro-movement in all directions under different shovel width conditions were compared, and the soil disturbance effect of direct injection deep loose shovel was analyzed. The results showed that tillage resistance was the minimum when the width of shovel was 350mm, and tillage specific resistance was the minimum when the width of shovel was 450mm. Soil disturbance was increased with the increase of shovel width, and the shovel width mainly affected soil lateral disturbance, soil retreat and ridge height. Reducing the width appropriately was beneficial to reduce soil lateral disturbance, increase soil retreat and reduce ridge height. The width of the shovel had an important effect on soil fluffiness and soil disturbance coefficient. When the width of the shovel was 350mm, the soil fluffiness was relatively small and the soil disturbance coefficient was relatively large. Different shovel width had certain influence on tillage resistance and disturbed area, and the influence degree of shovel width on disturbed area was greater than that of tillage resistance. Within the design parameters of shovel width, the average errors of test and simulation results of soil bulk degree and disturbance coefficient were 6.36% and 6.84%, respectively. The average errors of test and simulation values of tillage resistance and specific resistance were 9.02% and 12.41%, respectively. The effect of interval subsoiling machine on reducing soil disturbance was obvious, which can provide reference for the optimal design of subsoiling machine.
Keywords: conservation tillage;interval subsoiling;direct injection subsoiling shovel;soil disturbance;discrete element
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WANG Qingjie, CAO Xinpeng, WANG Chao, et al. Research progress of no/minimum tillage corn seeding technology and machine in northeast black land of China [J ]. Transactions of the Chinese Society for Agricultural Machinery, 2021 , 52( 10) ; 1-15. (in Chinese)
W ANG Jinwu, TANG Han, W ANG Jinfeng. Comprehensive utilization status and development analysis of crop straw resource in northeast China [J] . Transactions of the Chinese Society for Agricultural Machinery, 2017, 48(5) ; 1 —21. (in Chinese)
ZHANG Le, SU Xunva, MENG Hao, et al. Long-term cotton stubble return and subsoiling improve soil organic carbon by changing the stability and organic carbon of soil aggregates in coastal saline fields[ J ]. Soil & Tillage Research, 2024, 241 ; 106127.
CHEN Guibin, W ANG Qingjie, LI Hongwen, et al. Monitoring of farmland dust during tillage and sowing operations and comparative analysis of cultivation modes in the suburban areas of Beijing [J] . Soil & Tillage Research, 2024, 237; 105991.
ZOU Liangliang, LIU Gong, YUAN Jin, et al. Design and test of active lubrication and drag reduction curved subsoiler[ J]. Transactions of the Chinese Society for Agricultural Machinery, 2022, 53(6) :34 -43. (in Chinese)
LEI Zhang, ZHAI Yibin, W U Chuanyu, et al. Modeling the interaction between a new four-bar subsoiling mechanism and red soil using the improved differential evolution algorithm and DEM [ J ]. Computers and Electronics in Agriculture, 2023, 208: 107783.
ZIIAO Shuhong, LIU Hanpeng, YANG Chao, et al. Design and discrete element simulation of interactive layered subsoiler with maize straw returned to filed [J]. Transactions of the Chinese Society for Agricultural Machinery, 2021 , 52(3) : 75 -87. ( in Chinese)
LEI Zhang, ZHAI Yibin, CHEN Jianneng, et al. Optimization design and performance study of a subsoiler underlying the tea garden subsoiling mechanism based on bionics and EDEM[J]. Soil and Tillage Research, 2022, 220; 105375.
ZHANG Zhihong, GAN Shuaihui, ZUO Guobiao, et al. Bionic design and performance experiment of sandfish head inspired subsoiler tine [J] . Transactions of the Chinese Society for Agricultural Machinery, 2021 , 52(9) : 33 -42. (in Chinese)
ZHENG K, MCHUGH A D, LI H W, et al. Design and experiment of anti-vibrating and anti-wrapping rotary components for subsoiler cum rotary tiller[ J] . Int. J. Agric. & Biol. Eng. , 2019, 12(4) : 47 -55.
LIU Jun’an, WANG Xiaoyan, LI Hongwen, et al. Optimization of structural parameters of subsoiler based on soil disturbance and traction resistance [ J ]. Transactions of the Chinese Society for Agricultural Machinery, 2017, 48(2); 60 -67. (in Chinese)
ZHANG Xuening, YOU Yong, WANG Decheng, et al. Soil failure characteristics and loosening effeetivity of compacted grassland by subsoilers with different plough points [J] . Biosystems Engineering, 2024, 237: 170 - 181.
CHENG Hongsheng, ZHANG Zehan, SHEN Yujun, et al. Design and experiment of layered near-root liquid manure fertilization shovel[ J]. Transactions of the Chinese Society for Agricultural Machinery, 2024, 55(5) ; 98 - 107. (in Chinese)
WANG Y X, OSMAN A N, ZHANG D X, et al. Optimized design and field experiment of a staggered vibrating suhsoiler for conservation tillage[ J ]. Int. J. Agric. & Biol. Eng. , 2019, 12(1): 59 -65.
WEI Li jiao, HUANG Weihua, LIU Jian, et al. DEM simulation of subsoiling in tropical sugarcane fields; effects of opposing suhsoiler design and model parameters[ J ] . Smart Agricultural Technology, 2024, 9: 100593.
ZHANG Xirui, ZENG Wangqiang, LIU Junxiao, et al. Design and experiment of iateritic soil inclined handle folding wing subsoiling shovel based on discrete element method [J] . Transactions of the Chinese Society for Agricultural Machinery, 2022, 53(3): 40 -49. (in Chinese)
ZHU Huibin, LIU Qi, BAI Lizhen, et al. Design and testing of bionic-based layered subsoiling and classified fertilization machine [J]. Transactions of the Chinese Society for Agricultural Machinery, 2024, 55(Supp. 2) : 41 -52. (in Chinese)
WANG Y M, LU С J, CHEN J, et al. Effects of self-healing biomimetic suhsoiler on tillage resistance, wear-corrosion performance and soil disturbance morphology under different soil types[ J ]. Int. J. Agric. & Biol. Eng. , 2023, 16(3): 7 -14.
LU Qi, LIU Lijing, LIU Zhongjun, et al. Design and experiment of star-tooth spherical disc soil-covering device for planter [J] . Transactions of the Chinese Society for Agricultural Machinery, 2024, 55(4) ; 23 -31 , 73. (in Chinese)
ZIIOU Hua, ZHANG Wenliang, YANG Quanjun, et al. Design and experiment of sliding cutting self-excited vibration drag reduction subsoiling device [j]. Transactions of the Chinese Society for Agricultural Machinery, 2019, 50(5) ; 71 -78. (in Chinese)
W ANG Ruili, CHAI Jiajia, XU Fangjian, et al. Design and experiment of direct injection straw deep bury and returning machine [J]. Journal of Shenyang Agricultural University, 2019, 50(5) ; 634 -640. (in Chinese)
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